Safety razor



S. SAMUEL SAFETY RAZOR Feb. 9, 1937.

2 sheets sheet 1 Filed Feb. 18, 1956 Inventor ,5. Samuel S. SAMUELSAFETY RAZOR Feb. 9, 1937.

Filed Feb. 18, 1936 2 Sheets-Sheet 2 S-Sc22nueZ Patented Feb. 9, 1937SAFETY RAZOR Samuel Samuel,

Worcester, Mass.

Application February 18, 1936, Serial No. 64,547

' 2 Claims.

This invention relates to an improved safety razor structurally typicalof the type belonging to that category generally referred to as theselectively usable four-edged style.

Admittedly, and as implied by the preceding statement, I am aware thatthe principle of using four individually distinguished cutting edges ina blade and holder assembly is not new. It follows, therefore, that thestructural novelty hereinafter explicitly described and particularlyclaimed is devoted to certain comparatively distinct refinements andimprovements which, it is believed, may be justly endorsed asappreciable contributions to the trade and art.

The unique and improved assembly, being essentially made up of threecompanion units relies for distinctiveness on the specific holder inconjunction with the four-edged flexible blade.

One feature of construction is devoted to the 20 adoption andconstruction of a unique rectangular guard noticeably different in thatit embodies a marginal frame and an assembling and retaining web orspider carefully designed and including special accessories rendering itaptly fitted for the purposes herein intended.

An equally important feature believed to possess structural newness isthat part of the holder comprising the handle and an especially designedhead with which the blade and guard cooperate, 30 wherein the head isjoined to the handle or stem through the medium of carefully formed andproperly allocated detail to accurately accommodate the guard and theclamping nut and to combine with the blade to provide or regulate 35 theangularity of the head to the face and the pitch of the blade forexpeditious cutting.

Other features and advantages will become more readily apparent from thefollowing description and drawings:-

In the drawings wherein like numerals are employed to designate likeparts throughout the same:-

Figure 1 is a top plan view of the complete assembled safety razorconstructed in accordance with the principles of the present invention.

Figure 2 is a top plan view of the frame-like four-sided guard.

Figure 3 is a section taken approximately on the plane of the line 3-3of Figure 1.

Figures 4, 5, 6, and 7 are detail perspective views of the complementalparts.

As will be hereinafter discerned the safety razor blade, indicated bythe numeral 8 in Figure 5 is preferably a flexible cheap steel productand is substantially square or rectangular including selectively usableindividual bevelled cutting edges 9. At its center it is formed with asquare opening permitting it to be held non-rotatably and efiectively asclamped in place.

The handle part or section of the holder comprises a stem ll ofappropriate length which functions as a handle, this being polygonal incross-sectional form. At one end is an appropriately proportionedintegral head H which may be said to be in the form of a square plate,this having a flat underside l3 which functions as a backing element.The top, as shown for example in Figures 1 and 6 is approximatelypyramidal in configuration, being thus divided into four distinguishableuniform triangular face contacting segments or sectors it. These sectorswhen held properly against the face virtually regulate the pitch orangle of the cutting edges of the blade, that is, in conjunction withthe complemental features of the guard. At the juncture of the handleand underside of the plate is an integral square keeper block l5proportioned to accommodate the square opening it in the blade. Thisalso serves as a retention element to accommodate the correspondinglyshaped opening H5 at the center of the guard unit H. The numeral l8designates a screw-threaded cylindrical jointing and assembling neck toaccommodate the clamping nut Ill. The nut is preferably circular andexternally knurled as indicated at to facilitate application andremoval.

Referring now to Figure 2 and in particular to the guard ll, thiscomprises a single casting of appropriate dimensions and material. Itincludes a rectangular marginal frame, the portions or bars which may bedifferentiated by the numerals 2i. These bars are provided withlongitudinally spaced transverse guard teeth 22 which function forclearance purposes and perform as ordinary guard teeth do in theconventional holders. At the four corners are upstanding risers whichmay be conveniently differentiated as stabilizing posts 23 for thesomewhat rounded corner portions of the blade. The surfaces 24 arechamfered or rounded off for design and appearance as well as tofacilitate a gliding contact with the face. The spider or web is denotedby the numeral 25 and has its marginal end portions 26 cut away todefine segmental passages or openings as indicated at 21. The cornerportions of the web, which merge into the corner portions of the frame,are provided with thickened lugs or rests 28 of a height commensurate tothe posts and these serve to support the corner portions of the blade.

In assembling the razor for use, the blade which is of an area greaterthan the plate-dike head I3 is placed against the backing surface l3 ofsaid head as shown in the assembly view in Figure 3. Then the guard isslipped up in place so that the opening I6 firmly surrounds the keeperblock I5 in a non-rotatable manner. The guard as is obvious is of anarea to permit the cutting edges 9 to rest partially on the guard teeth22, with the corner portions simultaneously bearing on the posts 23 andthe diagonally inward abutments or rests 28. The parts are maintained inthis assembled relationship through the instrumentality of the nut 20which is threaded on to the neck I8.

It is thought that persons skilled in the art to which the inventionrelates will be able to obtain a clear understanding of the inventionafter considering the description in connection with the drawings.Therefore, a more lengthy description is regarded as unnecessary.

Minor changes in shape, size and rearrangement of details coming withinthe field of invention claimed may be resorted to in actual practice, ifdesired.

I claim:-

1. As a component part of a holder assembly of the class described, aguard including an outer rectangular frame, the bars of said frame beingprovided with transverse longitudinally spaced ribs constituting guardteeth, having corner posts and an inner central attaching web, extendinginwardly from each corner of the frame and abutments on said web forsupporting a blade, said abutments being located inwardly of the bars ofthe guard.

2. As a component part of a holder assembly of the class described, aguard including a rectangular frame said frame comprising four bars, thebars of said frame being provided with transverse longitudinally spacedribs constituting guard teeth, having comer posts, a central attachingweb, said web being formed with a central square retention aperturehaving its marginal edges of longitudinally curved form and spaced fromthe bar members of the frame and having its corner portion joined to thecorner portions of the frame and provided with upstanding bladesupporting abutments diagonally inward of the respective corner posts.

SAMUELSAMUEL.

